Zoey is working on comparing the selectivity of modern and past extinctions.
She also studied the anatomy of Bothriolepis, a Devonian placoderm fish.
The latter project was joint with
Jason Downs of Delaware Valley College.
Zoey presented a poster at the
Geological Society of America annual meeting (Denver, 2016) and is a co-author of a GSA
abstract.
Zoey majored in biology with a minor in environmental studies.

Tuan (right) and Jason (left) worked on methods for estimating the tempo and duration
of the Cambrian explosion.
They presented a poster at the
Geological Society of America annual meeting (Denver, 2016) and the
Sigma Xi poster session (Swarthmore, 2016),
and are co-authors of a GSA
abstract.
Jason is majoring in math and computer science; for more info on Tuan, see below.

Tuan (right) and Katrina (left) worked on methods for estimating the tempo and duration
of the Cambrian explosion.
They presented a poster at the
Sigma Xi poster session (Swarthmore, 2016)
and are co-authors of a GSA
abstract.
Katrina majored in computer science with a minor in statistics, and will be working in the software industry.
Tuan is majoring in math (with a statistics emphasis) and computer science.

Tushar is studying the phenomenon of "dead clade walking" after mass extinctions.
He presented a poster at the
Geological Society of America annual meeting (Denver, 2016)
and is a co-author of a GSA
abstract.
He majored in economics with a minor in statistics, and will be working in economics research at USC.

Heather (left) and Daniel (right) worked on methods for estimating the tempo and duration
of the Cambrian explosion.
They presented a poster at the
Geological Society of America annual meeting (Baltimore, 2015)
and are co-authors of two GSA abstracts
(1,
2).
Daniel majored in math with a minor in computer science, and is currently working in the insurance industry.
For more info on Heather, see below.

Leonie worked on the evolution of catarrhine primates, specifically the divergence of Hominoidea and Cercopithecoidea.
She presented a poster at the
Geological Society of America annual meeting (Baltimore, 2015).
She is the lead author on a paper currently in preparation with Steve and Philip Gingerich,
and is also a co-author on two GSA abstracts
(1,
2).
Leonie majored in biological anthropology and is currently working in education.

Meghana (far right) and Brandon (second from right) implemented Markov Chain Monte Carlo (MCMC)
and Approximate Bayesian Computation (ABC) algorithms
to study the end-Permian mass extinction and its effects on food webs.
This project was in collaboration with Peter Roopnarine
of the California Academy of Sciences (far left) and Ken Angielczyk of the Field Museum (not shown).
They presented a poster at the
Geological Society of America annual meeting (Baltimore, 2015) and
are co-authors of a GSA
abstract.
Meghana majored in math and will be a PhD student in atmospheric sciences at
MIT.
Brandon majored in math (with an emphasis in statistics) and computer science and
will be a PhD student in statistics at
Yale.

Heather worked on two projects: (1) estimating the duration of the Cambrian explosion,
and (2) confidence intervals on stratigraphic ranges when recovery potential is not uniform.
She presented a poster at the
Geological Society of America annual meeting (Baltimore, 2015).
She is a co-author on a
2016 paper in Paleobiology.
She is also a co-author on three GSA abstracts
(1,
2,
3).
Heather majored in math and economics and is currently working in finance.

Ben (right) and Richard (left) worked on parallelizing the algorithms for estimating the number of pulses in a mass extinction.
Ben majored in computer science with minors in statistics and English literature, and currently works in software engineering.
Richard majored in computer science and math and also currently works in software engineering.

Chengying (second from right) and Linda (far right) worked on estimating the tempo of the Cambrian explosion.
They presented a poster at the
Geological Society of America annual meeting (Denver, 2013).
They are co-authors on four GSA abstracts
(1,
2,
3,
4).
Chengying majored in math and computer science and is currently working in the insurance industry.
Linda is majored in math (with emphasis in statistics) and minored in biology and is currently a PhD student in biostatistics
at
Johns Hopkins.
At left is the rest of our research group: Adam Maloof (Princeton), Susannah Porter (UCSB), and a friend (Late Jurassic). (Not in photo: John Moore, UCSB.)

Peter studied the effectiveness of visualizing complex datasets using Chernoff faces. He is currently an undergradute at the
University of Chicago.

Ling Zhong '13 (Summer 2011, Spring 2013)

Ling worked on three projects: (1) assessing the population size of the North Atlantic right whale, one of the most endangered large cetacean species,
(2) estimating the number of pulses in a mass extinction, and
(3) the effect of incomplete preservation in estimating the incidence of drilling predation on bivalves.
She presented a poster at the
Geological Society of America annual meeting (Minneapolis, 2011) and the
Sigma Xi poster session (Swarthmore, 2011).
She is a co-author of a paper in press at Paleobiology, and a co-author of
two GSA abstracts
(1,
2).
Ling majored in math and economics and is currently a PhD student in
economics at
Yale University.
At left, she explains her poster to
Jason Downs.

Brianna worked on the evolution of body size in foraminifera and the effect of mass extinctions and recoveries on size trends.
She is the lead author of a
2012 paper in Paleobiology and a co-author of a
2016 paper also in Paleobiology.
She is also a co-author of four GSA abstracts
(1,
2,
3,
4).
Brianna earned her PhD in
history of science
at
Stanford University and is currently a science writer.

Heidi worked on two projects: (1) confidence intervals for estimating the duration of a mass extinction, and (2) visualizing complex datasets using Chernoff faces.
For the first topic, she presented a poster at the
Geological Society of America annual meeting (Portland, 2009) and is a co-author of a
2012 paper
in Paleobiology and two GSA abstracts
(1,
2).
For the second topic, results from our work were presented by Steve at the Harvard
Quintessential Contributions conference, and further work is ongoing.
Heidi majored in cognitive science with a minor in statistics. She earned
a M. Arch. in architecture and an MS in information from the
University of Michigan and currently works in interaction design.

Dasol worked on confidence intervals for stratigraphic ranges when recovery potential is non-uniform. He presented posters at the
Geological Society of America annual meeting (Houston, 2008)
and the
Sigma Xi poster session (Swarthmore, 2008).
He is a co-author of a
2016 paper in Paleobiology and
three GSA abstracts
(1,
2,
3).
Dasol majored in math and computer science and currently works in finance.

David worked on confidence intervals for stratigraphic ranges when recovery potential is non-uniform. He is a co-author of a
2009 paper
in Paleobiology and a
2016 paper also in Paleobiology.
He is also a co-author of three GSA abstracts
(1,
2,
3).
David majored in math with a minor in linguistics. He earned an MS in
mathematics
from the
University of Chicago
and currently works in data science.